Stitch picker



Oct. 1-5, 1946. H. GEARHART STITCH BICKER I Filed Jan. 24, 1946 2Sheets-She et 1 IN VEN TOR.

ATTCI RN EYE I Oct. 15, 1946. 1, H. GEARHART STITCH IICKER Filed Jan.24, 1946 2 Sheets-Sheet 2 I NVE N TOR.

ATTD RN EYE Patented Oct. 15, 1946 UNITED STATES PATENT OFFICE 2,409,351s'rrroH PICKER Ishmael H. Gearhart, Salem, Va. Application January 24,1946,. Serial No. 643,143

3 Claims. 1,

The invention relates to av device for removing switches from shoe weltswhich maybe connected to suitable parts of a shoe or other footwear andmore especially to a stitch picking, device.

The primary object: of the invention is the provision of a device ofthis character, wherein the stitches connecting parts of a shoe or thelike together will be withdrawn so that these parts, When separated,cleared of the severed stitches without the use of a hand knife or othersimilar cutter, as is commonly used in shoe repair shops.

Another object of the invention is the provision of a device of thischaracter, wherein through the rotation of a disk or other rotor, thepicking protuberances being disposed thereon in a manner, willpositively draw the threads in switch formation, so that the parts of ashoe to be clean thereof either before or after separation of the partsand this is effected with ease and dispatch.

Another object of the invention is the provision of a device of thischaracter, wherein on the severing of the stitches, the latter will bedrawn out of the material and picked from a shoe automatically, therebyrelieving hand activity for this purpose through the use of a hand tool.

A further object of the invention is the provision of a device of thischaracter, which is simple in construction, thoroughly reliable andefiicient in operation, strong, durable, power driven, readily andeasily applied in position and removed, constructed for convenienthandling and inexpensive to manufacture and install.

With these and other objects in view, the invention consists in thefeatures of construction, combination and arrangement of parts as willbe hereinafter more fully described, illustrated in the accompanyingdrawings, which show the preferred and modified forms of constructionthereof, and pointed out in the claims hereunto appended.

In the accompanying drawings:

Figure 1 is an outside face view of the device constructed in accordancewith the invention.

Figure 2 is a sectional view taken on the line 2 2 of Figure 1 lookingin the direction of the arrows.

Figure 3 is a plan view of the hub area of the device, looking towardthe rear end thereof.

Figure 4 is a similar view looking toward its front.

Figure 5 is a fragmentary elevation of the picker disk.

Figure 6 is an end view of the arbor.

Figure 7 is a sectional view through the structure shown in Figure 5.

Figure 8 is a view similar to Figure 2 showing a modification.

Figure 9 is a view similar to Figure 1 showing the modified form inFigure 8.

Figure 10 is a diagrammatic flattened view of the rim area of themodified form in Figure 8.

Figure 11 is a view similar to Figure 8 showing a further modification.

Figure 12 is a plan view thereof.

Similar reference characters indicate corresponding parts throughout theseveral views in the drawings.

Referring to the drawings in detail, the device constituting the presentinvention is very compact, and comprises essentially a flatsubstantially circular ring-like work engaging member I 0, having acenter clearance for accommodating an annular shoulder II, providing aseat I2 concentric thereto countersunk in a sleeve-like hub I3, which isadapted to be keyed or otherwise made fast on the reduced terminal I4 ofa rotating arbor I5, only a portion thereof being I shown in Figures 1,2 and 3 of the drawings.

The terminal I4 is formed with a key lug I6, which is engaged in aspiral way Il, provided in the clearance in the hub for such terminal,and the said hub is formed with an entrance throat I8 for the lug I6, sothat in this manner the hub can be detach-ably secured fast on thearbor.

The member I0 concentrically of the center clearance in the hub I3 forthe arbor terminal I 4 has cut and struck outwardly grouped series ofspaced picker teeth, each group involving three substantiallyhalf-circular shaped outwardly arched or concave -convexed builtprotuberances I8, I9 and 20 respectively, each constituting a tooth, andthe protuberance I8 is set radially to the axis of such member, whilethe protuberances I9 and 2B are disposed at reverse angles to each otherand to the protuberance I8, as best seen in Figures 1 and 5 of thedrawings.

The member I!) is held fast in the seating thereof on the hub I3 by aspline 2|, which is clearly shown in Figures 1 and 4 of the drawings,yet the said member may be otherwise secured on the hub. The angle ofthe protuberances I9 and 20 is approximately 45 degrees to the positionof the protuberance I8.

In Figures 8 to 10 inclusive, of the drawings, there is show amodification of the invention,

. wherein there is provided a substantially cupped or flared ring-member22, forming a rim 23, W th a shoulder 24, the latter seated at 25 on the3 hub 26 and this rim 23 has cut and struck therefrom the outwardlydisposed teeth 21, 28 and 29 respectively, grouped and built identicallyto the protuberances l8, l9 and 20 hereinbefore described.

In Figures 11 and 12 of the drawings, there is shown a furthermodification of the invention, wherein the hub 30 ha integrally formedtherewith the rim 3| over which is telescoped the member 32 each tooththereof being denoted at 33.

In the use of the device, the shoe to be worked upon is positioned asbest seen in Figure 2 of the drawings, with the welt 34 exposed to thepath of the protuberances constituting the teeth and in the rotation ofthe device, the threads will be removed from the welt and the sole 35 ofthe shoe for the clearing of such threads or stitches therefrom a shouldbe clearly obvious, the teeth being active on the switches in threedistinct directions in a circular course on the rotation of the saiddevice.

What is claimed is:

1. A device of the kind described, comprising a rotary arbor, and acircular member fixed to the arbor and having a work engaging peripherypro vided with grouped series of spaced protuberances, each of one groupbeing of substantially half-circular outwardly arched formation, theprotuberance of one group being disposed radially of the axis of thearbor and the others of said group being reversely angled thereto.

2. A device of the kind described, comprising a rotary arbor, and acircular member fixed to the arbor and having a work engaging peripheryprovided with grouped series of spaced protuberances, each of one groupbeing of substantially half-circular outwardly arched formation, theprotuberance of one group being disposed radially of the axis of thearbor and the others of said group being reversely angled thereto andmeans for fast seating the member on the arbor.

3. A device of the kind described, comprising a rotary arbor, and acircular member fixed to the arbor and having a work engaging peripheryprovided with grouped series of spaced protuberances, each of one groupbeing of substantially half-circular outwardly arched formation, theprotuberance of one group being disposed radially of the axis of thearbor and the others of said group being reversely angled thereto and ahub interfitting the member and arbor respectively,

ISHMAEL H. GEARHART.

